Infant bathtub



FIG. 1 is an elevated perspective view of an infant bathtub showing my new design;

FIG. 2 is an elevated perspective view from another angle thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a front view thereof. 

CLAIM The ornamental design for an infant bathtub, as shown and described. 